//*****************************************************************************
//
// timers.c - Timers example.
//
// Copyright (c) 2005-2007 Luminary Micro, Inc.  All rights reserved.
// 
// Software License Agreement
// 
// Luminary Micro, Inc. (LMI) is supplying this software for use solely and
// exclusively on LMI's microcontroller products.
// 
// The software is owned by LMI and/or its suppliers, and is protected under
// applicable copyright laws.  All rights are reserved.  Any use in violation
// of the foregoing restrictions may subject the user to criminal sanctions
// under applicable laws, as well as to civil liability for the breach of the
// terms and conditions of this license.
// 
// THIS SOFTWARE IS PROVIDED "AS IS".  NO WARRANTIES, WHETHER EXPRESS, IMPLIED
// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
// LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
// CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
// 
// This is part of revision 1716 of the Stellaris Peripheral Driver Library.
//
//*****************************************************************************

#include "hw_ints.h"
#include "hw_memmap.h"
#include "hw_types.h"
#include "debug.h"
#include "interrupt.h"
#include "sysctl.h"
#include "timer.h"
#include "osram96x16x1.h"
#include <stdio.h>
#include <stdlib.h>
#include "gpio.h"
//*****************************************************************************
//
//! \addtogroup ek_lm3s811_list
//! <h1>Timer (timers)</h1>
//!
//! This example application demonstrates the use of the timers to generate
//! periodic interrupts.  One timer is set up to interrupt once per second and
//! the other to interrupt twice per second; each interrupt handler will toggle
//! its own indicator on the display.
//
//*****************************************************************************

//*****************************************************************************
//
// Flags that contain the current value of the interrupt indicator as displayed
// on the OLED display.
//
//*****************************************************************************
unsigned long g_ulFlags;

//*****************************************************************************
//
// The error routine that is called if the driver library encounters an error.
//
//*****************************************************************************
#ifdef DEBUG
void
__error__(char *pcFilename, unsigned long ulLine)
{
}
#endif


#define PUSH_BUTTON             GPIO_PIN_4
unsigned long state=0;
unsigned long flag;
//*****************************************************************************
//
// The interrupt handler for the first timer interrupt.
//
//*****************************************************************************
void
Timer0IntHandler(void)
{
    //
    // Clear the timer interrupt.
    //
   // IntDisable(INT_GPIOC);
    //GPIOPinIntDisable(GPIO_PORTC_BASE, PUSH_BUTTON);
	//TimerEnable(TIMER1_BASE, TIMER_A);
	TimerIntClear(TIMER0_BASE, TIMER_TIMA_TIMEOUT);
	 
	 state=flag;
	 flag=0;
		
}

//*****************************************************************************
//
// The interrupt handler for the second timer interrupt.
//
//*****************************************************************************
void
Timer1IntHandler(void)
{
    //
    // Clear the timer interrupt.
    //
    TimerIntClear(TIMER1_BASE, TIMER_TIMA_TIMEOUT);
    IntEnable(INT_GPIOC);
  	GPIOPinIntEnable(GPIO_PORTC_BASE, PUSH_BUTTON);
}


void GPIO_C_Int(void)
{
	
	GPIOPinIntDisable(GPIO_PORTC_BASE, PUSH_BUTTON);
	GPIOPinIntClear(GPIO_PORTC_BASE, PUSH_BUTTON);
	
	IntDisable(INT_GPIOC);
	TimerEnable(TIMER1_BASE, TIMER_A);
	
	if(flag==0)
	{
		TimerEnable(TIMER0_BASE, TIMER_A);
	   	flag=1;
	}	
 	else if(flag==1)
	{
		flag=2;
	}
}

//*****************************************************************************
//
// This example demonstrates how to setup an analog comparator and trigger
// interrupts on output changes.
//
//*****************************************************************************
int
main(void)
{
   	char string[1]="0";
	
	 
	//
    // Set the clocking to run directly from the crystal.
    //
    SysCtlClockSet(SYSCTL_SYSDIV_10 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN |
                   SYSCTL_XTAL_6MHZ);

   
    //
    // Enable the peripherals used by this example.
    //
   SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER1);
   SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER0);
   SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
   
    //
    // Enable processor interrupts.
    //
    OSRAM96x16x1Init(false);
	
	IntMasterEnable();

  	IntEnable(INT_GPIOC); 
   	//GPIOPinTypeTimer(GPIO_PORTC_BASE,PUSH_BUTTON);
 	GPIOPinTypeGPIOInput(GPIO_PORTC_BASE, PUSH_BUTTON);
    GPIOIntTypeSet(GPIO_PORTC_BASE,PUSH_BUTTON,GPIO_RISING_EDGE);
	GPIOPinIntEnable(GPIO_PORTC_BASE, PUSH_BUTTON);
	
	//
    // Configure the two 32-bit periodic timers.
   //
    TimerConfigure(TIMER0_BASE, TIMER_CFG_32_BIT_OS);
    TimerConfigure(TIMER1_BASE, TIMER_CFG_32_BIT_OS);
	TimerLoadSet(TIMER0_BASE, TIMER_A, SysCtlClockGet()/2);
   	TimerLoadSet(TIMER1_BASE, TIMER_A, SysCtlClockGet()/5);
   
   
    //
    // Setup the interrupts for the timer timeouts.
    //
    IntEnable(INT_TIMER0A);
    TimerIntEnable(TIMER0_BASE, TIMER_TIMA_TIMEOUT);
    IntEnable(INT_TIMER1A);
    TimerIntEnable(TIMER1_BASE, TIMER_TIMA_TIMEOUT);

   
    //
    // Loop forever while the timers run.
    //
    while(1)
    {
       //if(GPIOIntTypeGet((GPIO_PORTC_BASE,PUSH_BUTTON)
	
	
	
	string[0]=(char)(48+state);
	IntMasterDisable();
    OSRAM96x16x1StringDraw(string, 78, 1);
    IntMasterEnable();
	}
}	
																																																																																																																																																																																																																																																																				
 